IT9060459U1 - RING SUPPORT FOR ROLLING CAGES WITH ROLLER ROLLERS - Google Patents

RING SUPPORT FOR ROLLING CAGES WITH ROLLER ROLLERS Download PDF

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Publication number
IT9060459U1
IT9060459U1 IT060459U IT6045990U IT9060459U1 IT 9060459 U1 IT9060459 U1 IT 9060459U1 IT 060459 U IT060459 U IT 060459U IT 6045990 U IT6045990 U IT 6045990U IT 9060459 U1 IT9060459 U1 IT 9060459U1
Authority
IT
Italy
Prior art keywords
flange
toric
support
rings
ring
Prior art date
Application number
IT060459U
Other languages
Italian (it)
Other versions
IT9060459V0 (en
IT221096Z2 (en
Inventor
Germania Nonini
Original Assignee
Barzizza Ferruccio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Barzizza Ferruccio filed Critical Barzizza Ferruccio
Priority to IT60459U priority Critical patent/IT221096Z2/en
Publication of IT9060459V0 publication Critical patent/IT9060459V0/en
Priority to EP91119704A priority patent/EP0488022B1/en
Priority to ES91119704T priority patent/ES2060276T3/en
Priority to AT91119704T priority patent/ATE108712T1/en
Priority to DE69102979T priority patent/DE69102979T2/en
Priority to US07/797,024 priority patent/US5184493A/en
Priority to JP31030191A priority patent/JP3240168B2/en
Publication of IT9060459U1 publication Critical patent/IT9060459U1/en
Application granted granted Critical
Publication of IT221096Z2 publication Critical patent/IT221096Z2/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02Shape or construction of rolls
    • B21B27/03Sleeved rolls
    • B21B27/035Rolls for bars, rods, rounds, tubes, wire or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end

Abstract

Support for rolling rings on rolling stands having rolls supported as cantilevers, comprising a shaft (16) with a first flange (12) and a second flange (13), a rolling ring (11) having substantially parallel lateral walls being interposed therebetween, the second flange (13) operating towards the first flange (12) owing to the action of threaded clamping bolts (14), the first and second flanges (12-13) including undercuts (17), in which support: the shaft (16) extends beyond the rolling ring (11) so as to create a first toric protrusion (20), the second flange (13) comprises a toric hollow (21), which mates with the first toric protrusion (20) and is coupled thereto, and comprises also a second toric protrusion extending within the first toric protrusion (20) and mating therewith, and the undercuts (17) of the first (12) and second (13) flanges include rings (22) made of an antifriction material. <IMAGE>

Description

"SUPPORTO PER ANELLI PER GABBIE DI LAMINAZIONE CON RULLI A SBALZO" "SUPPORT FOR RINGS FOR LAMINATING CAGES WITH EMBOSSED ROLLERS"

CAMPO DI APPLICAZIONE FIELD OF APPLICATION

Forma oggetto del presente trovato un supporto per anelli per gabbie di laminazione con rulli a sbalzo come espresso nella rivendicazione principale. The present invention relates to a support for rings for rolling stands with cantilevered rollers as expressed in the main claim.

Più precisamente, forma oggetto del presente trovato un supporto migliorato che serve per sostenere, posizionare, portare e mantenere in rotazione gli anelli dei rulli a sbalzo di una gabbia di laminazione . More precisely, the present invention relates to an improved support which serves to support, position, carry and keep in rotation the rings of the cantilevered rollers of a rolling stand.

STATO DELLA TECNICA STATE OF THE TECHNIQUE

Sono note le gabbie di laminazione con rulli a sbalzo in cui le gabbie di laminazione riportano degli anelli con una o due gole di laminazione, essendo detti anelli sostitutivi dei normali cilindri. E<1 >noto che detti anelli sono attualmente in materiale molto duro di tipo sinterizzato. Rolling stands with cantilevered rollers are known in which the rolling stands have rings with one or two rolling grooves, said rings being substitutes for normal rolls. It is known that said rings are currently made of very hard material of the sintered type.

E' anche noto che detti anelli vengono montati, ed ivi bloccati, su supporti appositi che servono sia per sostenere e posizionare reciprocamente gli anelli, sia per trasmettere loro il moto rotatorio Il moto rotatorio normalmente non viene trasmesso mediante spine o chiavette, ma viene trasmesso per attrito . It is also known that said rings are mounted, and locked therein, on special supports which serve both to support and reciprocally position the rings, and to transmit the rotary motion to them The rotary motion is not normally transmitted by means of pins or keys, but is transmitted by friction.

E’ quindi evidente che detti supporti assolvono a funzioni molto importanti ed essenziali per il funzionamento della gabbia di laminazione. It is therefore evident that said supports perform very important and essential functions for the operation of the rolling stand.

Un sistema di montaggio degli anelli a sbalzo sui detti supporti 10 è quindi una parte essenziale del supporto affinchè esso possa assolvere al meglio le sue funzioni; attualmente un sistema preferenziale è quello illustrato in fig. 1. A system for mounting the cantilevered rings on said supports 10 is therefore an essential part of the support so that it can perform its functions in the best possible way; currently a preferential system is that illustrated in fig. 1.

In tale figura si vede un anello 11 montato sull'albero 16, che presenta la prima flangia 12, essendo presente la seconda flangia 13 con semialbero 116. In this figure we see a ring 11 mounted on the shaft 16, which has the first flange 12, the second flange 13 with half shaft 116 being present.

I due alberi 16 e 116 sostanzialmente si appoggiano lungo la linea di giunzione 15 che trovasi in una posizione intermedia della lunghezza del foro di calettamento dell'anello 11. The two shafts 16 and 116 substantially rest along the seam 15 which is in an intermediate position along the length of the keying hole of the ring 11.

Per bloccare la seconda flangia 13 contro la prima flangia 12, e quindi per bloccare in posizione intermedia l'anello 11, si utilizzano le viti 14. To lock the second flange 13 against the first flange 12, and therefore to lock the ring 11 in an intermediate position, the screws 14 are used.

Sulla prima flangia 12 e sulla seconda flangia 13 sono presenti sottosquadri 17 che servono come mezzi di precarica nel serraggio. On the first flange 12 and on the second flange 13 there are undercuts 17 which serve as means of pre-loading in the tightening.

Questa soluzione, sotto carico, comporta una pluralità di inconvenienti che riducono sia la durata che la capacità della soluzione nota. This solution, under load, involves a plurality of drawbacks which reduce both the duration and the capacity of the known solution.

Un primo inconveniente sono le rotture 18 che intervengono nella prima flangia 12. A first drawback are the breaks 18 which intervene in the first flange 12.

Un secondo inconveniente sono le flessioni 19 che intervengono nella prima flangia 12 e che non permettono un corretto posizionamento dell'anello 11, dette flessioni 19 rimanendo permanenti. A second drawback are the flexures 19 which intervene in the first flange 12 and which do not allow correct positioning of the ring 11, said flexions 19 remaining permanent.

Un terzo inconveniente sono le flessioni 119 che intervengono nella seconda flangia 13 e che comportano un non corretto posizionamento dell'anello 11, anche dette flessioni rimanendo permanenti. A third drawback are the flexures 119 which intervene in the second flange 13 and which entail an incorrect positioning of the ring 11, also said flexions remaining permanent.

Quando una flessione diviene permanente, le parti interessate del supporto 10 divengono inutilizzabili. When a bending becomes permanent, the affected parts of the support 10 become unusable.

Un quarto inconveniente è la ridotta coppia di serraggio applicabile sulle viti 14. A fourth drawback is the reduced tightening torque applicable to the screws 14.

Un quinto inconveniente è la non capacità del supporto 10, in determinate condizioni, di portare in rotazione l'anello 11 e quindi di rendere operativa la gabbia di laminazione. A fifth drawback is the inability of the support 10, under certain conditions, to rotate the ring 11 and therefore to make the rolling stand operative.

Per risolvere questi problemi, la proponente ha To solve these problems, the proponent has

ESPOSIZIONE DEL TROVATO EXPOSURE OF THE FOUND

Il trovato è esposto e caratterizzato nella rivendicazione principale. The invention is disclosed and characterized in the main claim.

Le rivendicazioni derivate espongono varianti all'idea di soluzione. The derived claims expose variants to the solution idea.

Il trovato viene espresso illustrativamente nella figura 2. The invention is illustrated by way of illustration in Figure 2.

In detta figura si vede l'albero 16 che si estende fin oltre lo spessore dell'anello 11 a creare un'appendice torica 20. In said figure the shaft 16 is seen which extends beyond the thickness of the ring 11 to create a toric appendage 20.

Detta appendice torica 20, cioè fatta ad anello a sbalzo, entra con un montaggio stretto in una cava torica 21 coniugata che riconduce la linea di giunzione 15 nell'intorno della corrispondenza dello spessore dell'anello 11, in corrispondenza al foro di calettamento. Said toric appendix 20, that is made in a cantilevered ring, enters with a tight assembly into a mating toric slot 21 which leads the junction line 15 around the correspondence of the thickness of the ring 11, in correspondence with the keying hole.

Questa maschiatura tra appendice torica 20 e cava torica 21, eseguita di precisione, è determinante per il contenimento delle deformazioni reciproche tra la prima flangia 12 e la seconda flangia 13 quando viene inserito l'anello 11 ed il supporto 10 viene chiuso e precaricato. This precision tapping between the toric appendage 20 and the toric slot 21 is decisive for containing the reciprocal deformations between the first flange 12 and the second flange 13 when the ring 11 is inserted and the support 10 is closed and preloaded.

cosi discontinuità di contatto tra le superfici dato che, per mezzo della maschiatura tra cava torica 21 e appendice torica 20, l'albero 16 di calettamento anello 11 riceve ben poche sollecitazioni dovute ad una precarica dei sottosquadri 17. thus discontinuity of contact between the surfaces since, by means of the tapping between the toric slot 21 and the toric appendage 20, the shaft 16 for keying the ring 11 receives very little stress due to a preloading of the undercuts 17.

Questa soluzione permette inoltre di allungare le viti di assemblaggio 14, il che consente di aumentare la coppia di serraggio avendo una lunghezza maggiore disponibile su cui distribuire il carico. This solution also allows to lengthen the assembly screws 14, which allows to increase the tightening torque by having a greater length available on which to distribute the load.

Il trovato prevede poi di inserire sulle facce di sottosquadro 17 degli anelli 22 in materiale antifrizione con alto indice di aderenza, ciò che garantisce l'assenza di qualsiasi pattinamento dell'anello 11 sinterizzato nel supporto 10 anche con valori di coppia elevati. The invention then provides for the insertion on the undercut faces 17 of rings 22 made of anti-friction material with a high adhesion index, which guarantees the absence of any sliding of the sintered ring 11 in the support 10 even with high torque values.

Gli anelli 22 sotto carico hanno un cedimento dimensionale del tutto trascurabile, il che assicura sempre una buona corrispondenza tra i canali di due anelli reciproci. The rings 22 under load have a completely negligible dimensional yield, which always ensures a good correspondence between the channels of two reciprocal rings.

Claims (1)

RIVENDICAZIONI 1 - Supporto per anelli per gabbie di laminazione con rulli a sbalzo prevedente un albero (16) con prima flangia (12) ed una seconda flangia (13) , essendo interposto l'anello (11) , detta seconda flangia (13) operando verso detta prima flangia (12) per l'azione di viti di serraggio (14) , detta prima e seconda flangia (12-13) presentando sottosquadri (17) , caratterizzato dal fatto che: - il detto albero (16) si estende oltre il detto anello (11) a creare un'appendice torica (20) ; - la detta seconda flangia (13) presentando una cava torica (21) coniugata con detta appendice torica (20) e maschista su di essa. 2 - Supporto come alla rivendicazione 1, caratterizzato dal fatto che i sottosquadri (17) presentano anelli (22) in materiale antifrizione. CLAIMS 1 - Support for rings for rolling stands with cantilevered rollers providing a shaft (16) with first flange (12) and a second flange (13), the ring (11) being interposed, said second flange (13) operating towards said first flange (12) for the action of tightening screws (14), said first and second flange (12-13) having undercuts (17), characterized in that: - said shaft (16) extends beyond said ring (11) to create a toric appendage (20); - said second flange (13) presenting a toric slot (21) mating with said toric appendix (20) and a male part on it. 2 - Support as in Claim 1, characterized in that the undercuts (17) have rings (22) made of anti-friction material.
IT60459U 1990-11-27 1990-11-27 SUPPORT FOR RINGS FOR ROLLING CAGES WITH ROLLER ROLLERS IT221096Z2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT60459U IT221096Z2 (en) 1990-11-27 1990-11-27 SUPPORT FOR RINGS FOR ROLLING CAGES WITH ROLLER ROLLERS
EP91119704A EP0488022B1 (en) 1990-11-27 1991-11-18 Support for rolling rings on rolling stands having rolls supported as cantilevers
ES91119704T ES2060276T3 (en) 1990-11-27 1991-11-18 SUPPORT FOR ROLLING ROLLERS IN ROLLING TRAINS THAT HAVE SUSPENDED ROLLERS IN CANTILEVER.
AT91119704T ATE108712T1 (en) 1990-11-27 1991-11-18 HOLDERS FOR ROLLING RINGS FOR ROLLING STANDS WITH OVERHEAD ROLLERS.
DE69102979T DE69102979T2 (en) 1990-11-27 1991-11-18 Holder for rolling rings for roll stands with overhung rollers.
US07/797,024 US5184493A (en) 1990-11-27 1991-11-25 Support for rolling rings on rolling stands having rolls supported as cantilevers
JP31030191A JP3240168B2 (en) 1990-11-27 1991-11-26 Support for roll ring of cantilever type roll stand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT60459U IT221096Z2 (en) 1990-11-27 1990-11-27 SUPPORT FOR RINGS FOR ROLLING CAGES WITH ROLLER ROLLERS

Publications (3)

Publication Number Publication Date
IT9060459V0 IT9060459V0 (en) 1990-11-27
IT9060459U1 true IT9060459U1 (en) 1992-05-27
IT221096Z2 IT221096Z2 (en) 1994-02-09

Family

ID=11291151

Family Applications (1)

Application Number Title Priority Date Filing Date
IT60459U IT221096Z2 (en) 1990-11-27 1990-11-27 SUPPORT FOR RINGS FOR ROLLING CAGES WITH ROLLER ROLLERS

Country Status (7)

Country Link
US (1) US5184493A (en)
EP (1) EP0488022B1 (en)
JP (1) JP3240168B2 (en)
AT (1) ATE108712T1 (en)
DE (1) DE69102979T2 (en)
ES (1) ES2060276T3 (en)
IT (1) IT221096Z2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE528850C2 (en) 2005-06-17 2007-02-27 Sandvik Intellectual Property Roller and spacer ring with power transmitting end surface

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR67543E (en) * 1955-02-08 1958-03-13 Separator for liquids of different densities
GB1298065A (en) * 1968-12-10 1972-11-29 British Iron Steel Research Rolling mill work roll assemblies
GB1252549A (en) * 1970-07-25 1971-11-03
DE2112966C3 (en) * 1971-03-17 1973-11-22 Walter Dipl.-Ing. 8000 Muenchen Hufnagl Roller arrangement for the production of wires or rods with a smooth or a ribbed surface
FR2182685B1 (en) * 1972-05-04 1980-03-14 Ugine Carbone
JPS5345179A (en) * 1976-10-06 1978-04-22 Fujitsu Ltd Production of semiconductor device
SU839635A1 (en) * 1979-07-13 1981-01-23 Львовское Специальное Конструктор-Cko-Технологическое Бюро Произ-Водственного Объединения "Ювелир-Пром" Rolling roll support
JPS632509A (en) * 1986-06-19 1988-01-07 Mitsubishi Metal Corp Rolling mill
GB2193670B (en) * 1986-08-11 1990-03-21 Copper Refineries Pty Ltd Mill roll
JPH0622723B2 (en) * 1986-12-27 1994-03-30 住友金属工業株式会社 Method for manufacturing compound rolling roll
DE3725013A1 (en) * 1987-07-29 1989-02-09 Schloemann Siemag Ag CLAMPING DEVICE FOR RINGED BODIES ON A BOTH SIDED BEARING

Also Published As

Publication number Publication date
JP3240168B2 (en) 2001-12-17
US5184493A (en) 1993-02-09
IT9060459V0 (en) 1990-11-27
EP0488022A1 (en) 1992-06-03
ES2060276T3 (en) 1994-11-16
DE69102979T2 (en) 1994-12-01
JPH0798013A (en) 1995-04-11
ATE108712T1 (en) 1994-08-15
DE69102979D1 (en) 1994-08-25
EP0488022B1 (en) 1994-07-20
IT221096Z2 (en) 1994-02-09

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Effective date: 19951128